Doctors use tests like mammography, magnetic resonance imaging (MRI), and computed tomography (CT) scans to help them screen for, diagnose, treat, and monitor cancer. If you have been diagnosed with cancer, you may have had one or more of these tests. You may have wondered why you had specific tests and not others and what exactly the doctor was looking for....more

Imaging—X-rays, CT scans, MRIs—is a process that produces pictures of body structures and organs. It is used to detect tumors and other abnormalities, to determine the extent of disease, and to evaluate the effectiveness of treatment....more

A barium swallow is an imaging test that uses X-rays to look at your upper gastrointestinal (GI) tract. Your upper GI tract includes the back of your mouth and throat (pharynx) and your esophagus....more

A chest X-ray is an imaging test that uses X-rays to look at the structures and organs in your chest. It can help your health care provider see how well your lungs and heart are working. Certain heart problems can cause changes in your lungs. Certain diseases can cause changes in the structure of the heart or lungs....more

A chest ultrasound is an imaging test that uses sound waves to look at the structures and organs in your chest. It can help your health care provider see how well your lungs and heart are working....more

A bone marrow biopsy involves removing a small sample of the bone marrow inside your bones for testing. Bone marrow is a soft tissue in the center of most large bones. It makes most of the body's blood cells. The biopsy is done using a small needle inserted into the bone...more

Computed tomography is an imaging test that uses X-rays and a computer to make detailed images of the body. A CT scan shows details of the bones, muscles, fat, and organs. CT scans are more detailed than standard X-rays....more

Magnetic resonance imaging creates detailed images of the body using large magnets and a computer. For breast MRI, a woman will lie face down with her breasts positioned through holes in a table....more

CT scan is a type of imaging test. It uses X-rays and computer technology to make images or slices of the body. A CT scan can make detailed pictures of any part of the body. This includes the bones, muscles, fat, organs, and blood vessels. They are more detailed than regular X-rays....more